WO2002014961A1 - Procede de synchronisation de l'horloge interne d'un terminal mobile et de l'heure locale - Google Patents

Procede de synchronisation de l'horloge interne d'un terminal mobile et de l'heure locale Download PDF

Info

Publication number
WO2002014961A1
WO2002014961A1 PCT/DE2001/002954 DE0102954W WO0214961A1 WO 2002014961 A1 WO2002014961 A1 WO 2002014961A1 DE 0102954 W DE0102954 W DE 0102954W WO 0214961 A1 WO0214961 A1 WO 0214961A1
Authority
WO
WIPO (PCT)
Prior art keywords
time
short message
mobile radio
radio terminal
internal clock
Prior art date
Application number
PCT/DE2001/002954
Other languages
German (de)
English (en)
Inventor
Hans Zschintzsch
Original Assignee
T-Mobile Deutschland Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by T-Mobile Deutschland Gmbh filed Critical T-Mobile Deutschland Gmbh
Priority to US10/344,206 priority Critical patent/US6999787B2/en
Priority to PL360082A priority patent/PL199888B1/pl
Priority to AU2001283787A priority patent/AU2001283787A1/en
Priority to EP01962596A priority patent/EP1307790B1/fr
Priority to AT01962596T priority patent/ATE255237T1/de
Priority to DE50101050T priority patent/DE50101050D1/de
Publication of WO2002014961A1 publication Critical patent/WO2002014961A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • G—PHYSICS
    • G04—HOROLOGY
    • G04R—RADIO-CONTROLLED TIME-PIECES
    • G04R20/00—Setting the time according to the time information carried or implied by the radio signal
    • G04R20/14—Setting the time according to the time information carried or implied by the radio signal the radio signal being a telecommunication standard signal, e.g. GSM, UMTS or 3G

Definitions

  • the invention relates to a method for synchronizing the internal clock of a mobile radio terminal with the local time
  • a mobile radio terminal in particular a GSM terminal, generally has no options for determining the correct local (clock) time. Even if a clock module is installed in the terminal, the user must generally inform the user of the correct time.
  • the object of the invention is to propose a simple and automated method for synchronizing the internal clock of a mobile radio terminal with the local time.
  • the method described offers the mobile radio subscriber the possibility of having the current local time displayed by the mobile radio terminal in a simple manner.
  • the time can be determined down to a few seconds, which is perfectly sufficient in practice.
  • the method can be expanded in such a way that a mobile radio subscriber can also get the "right” local time practically by “pushing a button” when traveling, ie when roaming.
  • Figure 1 Exemplary flow chart of the method for setting the clock in the
  • the method according to the invention essentially takes advantage of the fact that in digital mobile radio networks, in particular GSM mobile radio networks, each short message is routed via a so-called Short Message Service Center (SMSC), and each message is provided with a time stamp t z there which in turn is communicated to the recipient of the message.
  • SMSC Short Message Service Center
  • a mobile terminal sends a short message to itself at the time to, it learns at the time. 2 (after a few tens of seconds) when the short message sent to itself is received, the time t z of the arrival of its own message in the SMSC. If the terminal remembers the sending time to by registering the position of the internal clock and the acknowledgment time ti a few seconds after sending its own message, there is a time window between to and ti in which the timestamp tz of the SMSC must be guaranteed , The time t z can be derived with good accuracy by maximum limitation of the time window.
  • the terminal sends a short message to itself, which is received by the SMSC.
  • do is the estimated or known minimum transmission time for the message from the terminal to the SMSC.
  • the message cannot have reached the SMSC before the expiry of time units.
  • the terminal waits for the acknowledgment (Ack) to receive the message in the SMSC.
  • the receipt arrives at time ti.
  • the SMSC must have sent the receipt before this time.
  • the terminal now waits for the self-directed message to arrive, which arrives at the terminal at time t 2 .
  • the terminal takes the time stamp t z from the message.
  • the absolute accuracy depends on the maximum deviation of the SMSC clock from the "true time”, i.e. the absolute time error is greater by the inaccuracy of the time base in the SMSC.
  • the method can also be used in roaming cases, i.e. if a mobile subscriber is outside his home network, be applied when the SMS message is transmitted to a time server connected to the SMSC, and the time server is informed in the message of the network code of the network in which the terminal is currently logged on. In its response, the time server will inform the terminal of the time zone to be used or the correction to be applied.
  • the home SMSC can still be used here. This can be implemented relatively easily in the end device, for example by using a SIM toolkit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Electric Clocks (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

La présente invention concerne un procédé de synchronisation de l'horloge interne d'un terminal mobile et de l'heure locale. Ce procédé est caractérisé en ce que le terminal mobile envoie un message court (Short Message :SM) à lui-même, déduit l'heure locale à partir des heures d'envoi et de réception des signaux du message court et à partir d'un marquage de la date et de l'heure contenu dans le message court reçu, puis synchronise l'horloge interne et cette heure locale.
PCT/DE2001/002954 2000-08-11 2001-08-09 Procede de synchronisation de l'horloge interne d'un terminal mobile et de l'heure locale WO2002014961A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US10/344,206 US6999787B2 (en) 2000-08-11 2001-08-09 Method for synchronizing the internal clock of a mobile radio terminal with local time
PL360082A PL199888B1 (pl) 2000-08-11 2001-08-09 Sposób synchronizacji zegara wewnętrznego urządzenia końcowego radiokomunikacji ruchomej z czasem lokalnym
AU2001283787A AU2001283787A1 (en) 2000-08-11 2001-08-09 Method for synchronising the internal clock of a mobile radio terminal with the local time
EP01962596A EP1307790B1 (fr) 2000-08-11 2001-08-09 Procede de synchronisation de l'horloge interne d'un terminal mobile et de l'heure locale
AT01962596T ATE255237T1 (de) 2000-08-11 2001-08-09 Verfahren zur synchronisation der internen uhr eines mobilfunkendgeräts mit der lokalen zeit
DE50101050T DE50101050D1 (de) 2000-08-11 2001-08-09 Verfahren zur synchronisation der internen uhr eines mobilfunkendgeräts mit der lokalen zeit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10040035A DE10040035B4 (de) 2000-08-11 2000-08-11 Verfahren zur Synchronisation der internen Uhr eines Mobilfunkendgeräts mit der lokalen Zeit
DE10040035.3 2000-08-11

Publications (1)

Publication Number Publication Date
WO2002014961A1 true WO2002014961A1 (fr) 2002-02-21

Family

ID=7652623

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2001/002954 WO2002014961A1 (fr) 2000-08-11 2001-08-09 Procede de synchronisation de l'horloge interne d'un terminal mobile et de l'heure locale

Country Status (8)

Country Link
US (1) US6999787B2 (fr)
EP (1) EP1307790B1 (fr)
AT (1) ATE255237T1 (fr)
AU (1) AU2001283787A1 (fr)
CZ (1) CZ300620B6 (fr)
DE (2) DE10040035B4 (fr)
PL (1) PL199888B1 (fr)
WO (1) WO2002014961A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014191390A3 (fr) * 2013-05-29 2015-09-24 Weidmüller Interface GmbH & Co. KG Procédé de détection d'un temps local émetteur dans un récepteur

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FR2841712B1 (fr) * 2002-06-28 2006-04-14 Laurent Andre Claude Granier Systeme informatique de gestion des messages alphanumeriques, ou binaires, utilises dans la telecommunication mobile
KR100772468B1 (ko) * 2002-12-13 2007-11-02 리서치 인 모션 리미티드 모바일 통신 장치들을 위한 ｓｍｓ 메시지 타임스탬프포매팅에 일관성을 제공하는 방법 및 장치
DE10313421B4 (de) * 2003-03-25 2005-04-14 T-Mobile Deutschland Gmbh Verfahren zur Synchronisation der internen Uhr eines Datenverarbeitungssystems mit der lokalen Ortszeit
US7613212B1 (en) * 2003-06-10 2009-11-03 Atrica Israel Ltd. Centralized clock synchronization for time division multiplexed traffic transported over Ethernet networks
CN1331372C (zh) * 2005-01-20 2007-08-08 展讯通信（上海）有限公司 一种手机时间校准方法
KR100703490B1 (ko) * 2005-04-18 2007-04-03 삼성전자주식회사 비동기 방식을 기반으로 한 이동 통신 단말기의 시간동기화 방법 및 그 시스템
CN100455051C (zh) * 2006-01-20 2009-01-21 华为技术有限公司 一种校正终端设备本地时间的方法及终端设备
US20090157138A1 (en) * 2006-04-18 2009-06-18 Electrocore, Inc. Methods And Apparatus For Treating Ileus Condition Using Electrical Signals
KR20070109546A (ko) * 2006-05-11 2007-11-15 삼성전자주식회사 이동 통신 단말의 시각 설정 방법 및 장치
JP4743280B2 (ja) * 2009-01-09 2011-08-10 カシオ計算機株式会社 時刻情報受信装置、電波時計およびプログラム
CN101980555A (zh) * 2010-10-26 2011-02-23 中兴通讯股份有限公司 移动终端的时间设置方法及移动终端
JP6187406B2 (ja) * 2014-07-18 2017-08-30 カシオ計算機株式会社 電子時計
JP7021505B2 (ja) * 2017-11-08 2022-02-17 セイコーエプソン株式会社 電子機器

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2784760A1 (fr) * 1998-10-14 2000-04-21 Sagem Procede de gestion de l'heure dans un telephone mobile
DE19860936A1 (de) * 1998-12-08 2000-06-15 Ubicom Ges Fuer Telekommunikat Verfahren zum Aktualisieren der Systemzeit eines Datenprozessorsystems
DE10065484A1 (de) * 1999-12-29 2001-07-12 Sagem Verfahren zur Zeiteinstellung eines zellularen Endgeräts und zellulares Endgerät zur Ausführung des Verfahrens

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JPH11243583A (ja) * 1998-02-25 1999-09-07 Sony Corp 移動体通信システムの移動端末
US6539493B1 (en) 1998-12-08 2003-03-25 Ubicom Gmbh Method of updating the system time of a data processor system
DE19860939A1 (de) 1998-12-29 2000-07-20 Guenther Mikolajzak System Translater
JP2001004764A (ja) * 1999-06-16 2001-01-12 Matsushita Electric Ind Co Ltd 時計装置
US6587398B1 (en) * 2000-08-11 2003-07-01 Motorola Inc. Method and apparatus for providing selectable roaming and non-roaming alarms
US6728533B2 (en) * 2001-01-25 2004-04-27 Sharp Laboratories Of America, Inc. Clock for mobile phones
US6826416B2 (en) * 2001-02-16 2004-11-30 Microsoft Corporation Automated cellular telephone clock setting

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
FR2784760A1 (fr) * 1998-10-14 2000-04-21 Sagem Procede de gestion de l'heure dans un telephone mobile
DE19860936A1 (de) * 1998-12-08 2000-06-15 Ubicom Ges Fuer Telekommunikat Verfahren zum Aktualisieren der Systemzeit eines Datenprozessorsystems
DE10065484A1 (de) * 1999-12-29 2001-07-12 Sagem Verfahren zur Zeiteinstellung eines zellularen Endgeräts und zellulares Endgerät zur Ausführung des Verfahrens

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014191390A3 (fr) * 2013-05-29 2015-09-24 Weidmüller Interface GmbH & Co. KG Procédé de détection d'un temps local émetteur dans un récepteur

Also Published As

Publication number Publication date
US6999787B2 (en) 2006-02-14
US20040023681A1 (en) 2004-02-05
AU2001283787A1 (en) 2002-02-25
DE50101050D1 (de) 2004-01-08
DE10040035A1 (de) 2002-02-21
PL199888B1 (pl) 2008-11-28
EP1307790B1 (fr) 2003-11-26
CZ300620B6 (cs) 2009-07-01
DE10040035B4 (de) 2005-10-06
EP1307790A1 (fr) 2003-05-07
PL360082A1 (en) 2004-09-06
CZ2003708A3 (cs) 2003-06-18
ATE255237T1 (de) 2003-12-15

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